University of Khartoum

Adaptation Of (Hdm-4) And (Pci) For Prioritizing Pavement Maintenance Of Sudan Paved Roads Network

Adaptation Of (Hdm-4) And (Pci) For Prioritizing Pavement Maintenance Of Sudan Paved Roads Network

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dc.contributor.advisor Dr. Awad Al Karim Mustafa en_US
dc.contributor.author Abdel Rahman, Kamal Masaoud Margi
dc.date.accessioned 2015-05-14T12:38:44Z
dc.date.available 2015-05-14T12:38:44Z
dc.date.issued 2015-05-14
dc.date.submitted 2011-03
dc.identifier.uri http://khartoumspace.uofk.edu/handle/123456789/10847
dc.description 300 Pages
dc.description.abstract The thesis is concerned with prioritization and optimization of pavement maintenance of the Sudan paved road network it is implemented on large part of the national road network (55% of the road network in 2005), which has no enough budget available for maintenance, the research also includes the development of Excel database and adaptation of condition survey methodology, to positively contribute in making better decisions with respect to expenditures of pavement maintenance and rehabilitation in Sudan. In this study a road classification system is developed, a comprehensive road inventory, pavement visual condition survey for the pavement distresses types severity, density and percent on each road were determined, 24-hours classification traffic count and other unit cost data were collected, analyzed and fed in to Highway Development and Management Software (HDM-4) and maintenance budget and a list of priorities and maintenance activities were generated. The study is also include a complete pavement condition survey and assessment of (2780) km from the paved road, the study ranks the project according to its Pavement Condition Index (PCI) to set initial priorities based on “the worst first” concept. It also includes carrying of Dynamic Cone Penetrometer (DCP) on selected representative sample units from some section of the roads and a correlation between the Pavement Structural Number (SNP) and PCI is worked out. The DCP data were analyzed using the Transport Research Laboratory (TRL), U.K software version 3.1 XI More than (50) Polynomial equations were generated in order to be used in the future for developing software to analysis of condition survey data instead of standard curves. The correlation between the data obtained from the standard curves and polynomials shows best fit condition (R2 more than 0.99). The study shows that about (17.4 %) of the paved roads are in “bad condition need urgent remedial (20.6 %) are in fair condition, 22.9% of roads are in “good” condition, 39.1% are in “excellent to very good” condition.. The greater percentage of distress in all road sections is found to be the lane/shoulder drop off. The average PCI of all the road was found to be in fair condition (57%), which mean that more efforts should be made to maintain the roads in the recent future or it will deteriorate to the poor condition. Also a literature reviews regarding pavement management data needs, treatment selection, prediction models, prioritization techniques and background of software used were presented. The research stressed on the reliability and sufficiency of the data in providing the factual for making pavement maintenance management decisions and discuss the levels and types of data needed for maintenance strategy generation and set the intervention levels at which a certain maintenance should be implemented on specified road having certain condition reached, adopt the types of treatment needed and the way it should XII be applied (scheduled or responsive) before running HDM-4 software. It is also concluded that the HDM-4 Software can be successfully used for generation of pavement maintenance strategy and it can be used for project analysis when the software is calibrated using automated condition and capacity analysis equipments, like Road Surface Tester (RST) and Falling Weight Defloctmeter (FWD) for measuring pavement surface condition and deflection respectively. en_US
dc.language.iso en en_US
dc.publisher University of Khartoum en_US
dc.subject Adaptation ,Prioritizing;Sudan; Paved Roads ;Network Pavement Maintenance en_US
dc.title Adaptation Of (Hdm-4) And (Pci) For Prioritizing Pavement Maintenance Of Sudan Paved Roads Network en_US
dc.type Thesis en_US
dc.Degree M.Sc en_US
dc.Faculty Building & Road Research Institute en_US
dc.contributor.faculty RoadTechnology en_US

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